1982580 has 48 divisors (see below), whose sum is σ = 5612544. Its totient is φ = 522880.

The previous prime is 1982579. The next prime is 1982587. The reversal of 1982580 is 852891.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1982587) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10285 + ... + 10475.

It is an arithmetic number, because the mean of its divisors is an integer number (116928).

2^1982580 is an apocalyptic number.

1982580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1982580 is an abundant number, since it is smaller than the sum of its proper divisors (3629964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1982580 is a wasteful number, since it uses less digits than its factorization.

1982580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376 (or 374 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 1982580 is about 1408.0411925793. The cubic root of 1982580 is about 125.6252407114.

The spelling of 1982580 in words is "one million, nine hundred eighty-two thousand, five hundred eighty".